Lubricating paste and pencil



UNITED STATES PATENT OFFICE.

THOMAS OOLGAN, OF BROOKLYN, NEW YORK.

LUBRICATING PASTE AND PENCIL.

SPECIFICATION forming part of Letters Patent No. 241,932, dated May 24, 1881.

Application filed March 25, 1881. (No specimens.)

To all whom it may concern Be it known that I, THOMAS OOLGAN, a resident of Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Lubricating Paste and Pencils; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to a lubricating compound prepared for use in solid or semi-solid form.

It consists of petroleum solidified by partial evaporation, and the combination therewith of paraffine and plumb-ago.

My compound is prepared by first heating the petroleum to the evaporating-point, then dissolving therein solid paraffine in proportions, Varying according to the density required in the product, of from six to twentyfour ounces of paraffine to sixteen ounces of petroleum, and adding thereto finely-pulverized plumbago in about the proportion of one ounce of plumbago to sixteen ounces of petroleum. The petroleum is constantly agitated during the process of preparing the compound to facilitate an evaporation therefrom of its more volatile elements and a thorough admixture therewith of the paraffine and plumbago. The compound when thoroughly admixed, is preferably run into molds in the form of pencils or rods, and when cold assumes a hard, solid form, admitting of being readily packed and handled for use. It may, however,

be also formed into blocks of any desired form or packed in boxes as a paste.

1 contemplate the addition to the compound of glycerine, stearine, or of fats or oils in simple form to vary its quality.

The solid rods or pencils are adapted for ready insertion into the ordinary oil-holes in the journal-boxes of shafting, and when so inserted operate automatically to lubricate the hearing. The heat developed in the hearing by friction, when more lubricant is needed, will sufiice to release from the pencil a sufficient quantity of the compound to produce the required lubrication, so that proper lubrication will be constantly and automatically maintained without waste or drip.

What I claim as new, and desire to secure by Letters Patent, is

1. A lubricating compound composed of petroleum, paraffine, and plumbago, admixed in substantially the proportions set forth.

2. As a new article of manufacture, petroleum solidified by evaporation and the admixture therewith of paratfine and plumbago, and molded into rods or pencils, substantially in the manner and for the purpose herein set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

THOMAS OOLGAN.

Witnesses:

J. F. AOKER, J r., IRVING DICKINSON. 

